Hi, a reminder in case anyone is still looking - I found a new-ish belay device at Anglezarke on 19. April, in the Golden Tower area (roughly at the foot of Glister Wall). There were no other climbers around at the time we left, so I brought it home. Tried Karabiner Club, since I gather they had been there, but no luck. I still have the device, and will gladly post to the unfortunate loser.